Primary seismic refraction data during cruise RV SONNE SO258/2 (INGON), Indian Ocean off Sri Lanka, profile AWI-20170400 ...

As part of the research project INGON (a collaboration between the Alfred Wegener Institute and the GEOMAR), two offshore seismic refraction profiles were obtained during Sonne cruise SO258 to study the separation of India and Antarctica. The acquired data set covers data of 30 stations recorded wit...

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Bibliographic Details
Main Authors: Weigelt, Estella, Geissler, Wolfram H, Altenbernd-Lang, Tabea, Jokat, Wilfried, Werner, Reinhard
Format: Dataset
Language:unknown
Published: PANGAEA 2025
Subjects:
AWI Geophysics
DEPAS
Indian Ocean
Ocean-bottom seismometer
RV Sonne
Seismic refraction data
Sri Lanka
Event label
Station label
Date/time start
LONGITUDE
LATITUDE
ELEVATION
Relocation
Date/time end
Clock skew
Instrument
Recorder type
Recorder, serial number
Seismometer type
Seismometer, serial number
Hydrophone type
Releaser, serial number
Seismic channel assignment
Hydrophone gain
Sampling rate
SEGY file
Comment
Ocean bottom seismometer
SO258/2
Sonne_2
Marine Geophysics @ AWI AWI_GeoPhy
Indian
Antarc*
Antarctica
Online Access:https://dx.doi.org/10.1594/pangaea.974478
https://doi.pangaea.de/10.1594/PANGAEA.974478
Description
Summary:As part of the research project INGON (a collaboration between the Alfred Wegener Institute and the GEOMAR), two offshore seismic refraction profiles were obtained during Sonne cruise SO258 to study the separation of India and Antarctica. The acquired data set covers data of 30 stations recorded with three different types of Ocean Bottom Seismometer (OBS)-systems: 12 LOBSTER and 2 NAMMU systems of the AWI belonging to the DEPAS pool (German Instrument Pool for Amphibian Seismology) and 20 OBS systems of GEOMAR. 21 instruments were deployed for profile AWI-20170400 at an average distance of 13.5 km. The profile extends in a NW-SE direction and crosses the proposed prolongation of the 85°E Ridge. Profiling started on 02 August 2017 at 84.24122°N, 1.12148°E, and ended on 03 August 2017 at 82.37525°N, 3.38.813°E. One OBS (station 407) could not be recovered, one OBS (station 421) did not return data, but all other OBS worked and could be synchronized with the GPS clock upon recovery such that skew values ...

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